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COLORADO <br />Division of Reclamation, <br />Mining and Safety <br />Department of Natural Resources <br />1313 Sherman Street, Room 215 <br />Denver, CO 80203 <br />July 21, 2016 <br />Mr. Vincent Saubastre <br />American Shale Oil, LLC <br />P.O. Box 1470 <br />Rifle, CO 81650 <br />Re: AMSO RD&D Project - Phase 1, N01 No. P-2008-046, Request to Eliminate Three Year Post - <br />Operational Water Monitoring Approval. <br />Dear Mr. Saubastre, <br />The Division of Reclamation, Mining and Safety (DRMS) has reviewed the request to eliminate three <br />years of post - operation water monitoring at the AMSO RDBD site. AMSO made three attempts during <br />2012 (4 days) and 2013 (15 days) with electric heaters to initiate the retorting and pyrolysis of the <br />targeted oil shale. All attempts failed and no heating of the oil shale at the temperature required to <br />pyrolize the oil shale occurred. <br />Due to temperatures around the production wells never reaching levels required to produce oil no <br />adverse impacts occurred to the ground water. Therefore, the request to eliminate the three year post <br />- operational water monitoring is approved. <br />If you need additional information, <br />Safety, Grand Junction Field Office <br />telephone no. 970.241.2042. <br />Sincerely, <br />Travis Marshall <br />Environmental Protection Specialist <br />cc: Paul Daggett <br />BLM - White River Field Office <br />220 East Market Street <br />Meeker, CO 81641 <br />Bill Merrill <br />Western Water and Land <br />743 Horizon Court, Suite 330 <br />Grand Junction, CO 81506 <br />please contact me at the Division of Reclamation, Mining and <br />101 S. 3rd St., Suite 301, Grand Junction, Colorado 81501, <br />1313 Sherman Street, Room 215, Denver, CO 80203 P 303.866.3567 F 303.832.8106 http://mining.state.co.us <br />John W. Hickenlooper, Governor I Mike King, Executive Director I Virginia Brannon, Director <br />